What is the meaning of гъ?

The sixth letter of the Abaza alphabet, written in the Cyrillic script.

The sixth letter of the Adyghe alphabet, written in the Cyrillic script.

The fifth letter of the Aghul alphabet, written in the Cyrillic script.

The eleventh letter of the Archi alphabet, written in the Cyrillic script.

The fifth letter of the Dargwa alphabet, written in the Cyrillic script.

The seventh letter of the Kabardian alphabet, written in the Cyrillic script.

The fifth letter of the Kumyk alphabet, written in the Cyrillic script.

The fifth letter of the Lezgi alphabet, written in the Cyrillic script.

The sixth letter of the Tabasaran alphabet, written in the Cyrillic script.

The fifth letter of the Avar alphabet, written in the Cyrillic script.

The fifth letter of the Crimean Tatar alphabet, written in the Cyrillic script.

The sixth letter of the Ossetian alphabet, written in the Cyrillic script.

Source: wiktionary.org